Questione giuridica chiave
Whether the factual findings about disproportionate self-defence were arbitrary
Decisione estratta
The challenge was purely appellatory and therefore inadmissible; the cantonal findings were not shown to be untenable.
Motivazione estratta
In criminal appeals, facts bind the Federal Court absent arbitrariness. The appellant merely substituted his own view of the evidence without demonstrating manifestly unsustainable reasoning.